The Volvo S90 2.0 D4 Automatic, produced from 2016 to 2018, represents a key variant within the first generation (2016 onwards) of Volvo’s flagship sedan. Positioned as a mid-range offering in the S90 lineup, it aimed to balance fuel efficiency with respectable performance, appealing to buyers seeking a comfortable and refined executive car experience. This model was built on Volvo’s Scalable Product Architecture (SPA) platform, also known as the P20, which underpins several other Volvo models like the XC90 and V90. The D4 designation signifies a four-cylinder diesel engine with approximately 190 horsepower, coupled with an eight-speed automatic transmission.
At the heart of the S90 D4 lies Volvo’s 2.0-liter inline-four cylinder diesel engine, internally designated as the D4204T14. This engine utilizes a sophisticated diesel commonrail fuel injection system, delivering fuel at extremely high pressure for optimized combustion. The engine is turbocharged, and in this configuration, employs a twin-turbo setup – a low-pressure turbocharger combined with a high-pressure turbocharger. This arrangement minimizes turbo lag and provides a broader, more consistent torque curve. The engine also features an intercooler to further enhance performance by cooling the intake air. The valvetrain utilizes a Double Overhead Camshaft (DOHC) configuration with four valves per cylinder, contributing to efficient gas exchange. The engine produces 190 horsepower at 4250 rpm and 400 Nm (295 lb-ft) of torque between 1740 and 2520 rpm. The eight-speed automatic transmission, sourced from Aisin, is known for its smooth shifting and responsiveness. It’s designed to work seamlessly with the engine’s torque characteristics, providing efficient acceleration and comfortable cruising.
The driving experience in the S90 D4 Automatic is characterized by a blend of comfort and efficiency. While not as overtly sporty as some of its competitors or even higher-powered S90 variants, the D4 provides ample power for everyday driving and highway overtaking. The eight-speed transmission contributes to relaxed cruising, keeping engine speeds low at highway speeds. Acceleration from 0 to 62 mph (0-100 km/h) takes approximately 8.2 seconds, and the car reaches a top speed of 225 km/h (139.81 mph). The gear ratios are tuned for fuel economy, with taller gearing in the upper ranges. Compared to the higher-output D5 diesel or the petrol-powered T5 and T6 models, the D4 offers a more economical driving experience, albeit with slightly reduced performance. The manual transmission versions of the D4 offered a more engaging driving experience, but the automatic was favored by many buyers for its convenience.
The S90 D4 Automatic typically came well-equipped, reflecting its positioning as a premium sedan. Standard features often included leather upholstery, a nine-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a rearview camera, and a suite of safety features such as City Safety (Volvo’s collision avoidance system), lane keeping assist, and automatic emergency braking. Optional extras included a premium Bowers & Wilkins audio system, a panoramic sunroof, ventilated and massaging front seats, and adaptive cruise control. Interior trim levels varied, with options for wood or metal inlays. The dashboard design is minimalist and Scandinavian-inspired, emphasizing clean lines and high-quality materials.
The S90 D4 utilizes a double wishbone front suspension and an independent multi-link rear suspension, both incorporating a stabilizer bar to reduce body roll. This setup provides a comfortable ride quality while maintaining good handling characteristics. Braking duties are handled by ventilated discs at the front and solid discs at the rear. Anti-lock Braking System (ABS) is standard. The steering system is an electric power steering rack and pinion, offering a balance of assistance and feedback. Tire sizes varied depending on the trim level, ranging from 225/55 R17 to 255/35 R20.
Critics generally praised the S90 D4 Automatic for its comfortable ride, refined interior, and fuel efficiency. The diesel engine was noted for its quiet operation and strong low-end torque. However, some reviewers found the performance to be adequate rather than exhilarating, particularly when compared to more powerful alternatives. Fuel economy was a strong point, with combined figures around 4.4 l/100 km (53.5 US mpg). Reliability has been generally good, although, as with any diesel, the particulate filter can require maintenance. Compared to the D5, the D4 offered lower running costs but less performance. The petrol T5 and T6 models provided more spirited driving experiences but at the expense of fuel economy.
| Engine Model/Code | D4204T14 |
| Engine Displacement | 1969 cm3 (120.16 cu. in.) |
| Number of Cylinders | 4, Inline |
| Power | 190 Hp @ 4250 rpm |
| Torque | 400 Nm @ 1740-2520 rpm (295.02 lb.-ft.) |
| Fuel Type | Diesel |
| Fuel Consumption (Combined) | 4.4 l/100 km (53.5 US mpg, 64.2 UK mpg) |
| CO2 Emissions | 116 g/km |
| Transmission | 8-speed Automatic |
| Acceleration 0-100 km/h | 8.2 sec |
| Maximum Speed | 225 km/h (139.81 mph) |
| Fuel Tank Capacity | 55 l (14.53 US gal, 12.1 UK gal) |
| Trunk Space | 500 l (17.66 cu. ft.) |
| Length | 4963 mm (195.39 in.) |
| Width | 1879 mm (73.98 in.) |
In the used car market, the Volvo S90 D4 Automatic remains a popular choice for buyers seeking a comfortable, refined, and fuel-efficient executive sedan. The 2.0-liter diesel engine has proven to be relatively reliable, although regular maintenance, including particulate filter cleaning, is essential. The eight-speed automatic transmission is also known for its durability. While newer models with more advanced technology are available, the 2016-2018 S90 D4 offers a compelling combination of value, comfort, and practicality, making it a strong contender in its segment.


